<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>提示信息</title>
    <style>
        .box {
            width: 600px;
            height: 100px;
            border: 1px solid red;
            text-align: center;
            margin: 150px auto;
            padding-top: 5px;
            box-sizing: border-box;
        }

        .box span {
            color: red;
        }
    </style>
</head>

<body>
    <div class="box">
        <span>提示信息</span>
        <h4>
            <%= exactness%>
        </h4>
    </div>
</body>

</html>